[Fnoord]

Social media and Bluetooth played a role in the Arab Spring [1]. Your average spy movie or series (I am currently watching The Americans) contains loads of [fictional] examples. Some other examples: SSH over Tor to get around firewall(s). USB sticks in concrete as a means of a drop point.

And what is fiction, might become reality. Just a matter of how far you wanna look. Snow Crash pretty much described Second Life or MMOs with the Metaverse. Plus, I remember around 2000 a joke IIRC called the iBrator. It was a remote, internet controlled vibrator. Back then it was an April Fool. Look where we are now? You can pay to make a person's (most likely a woman) vibrator vibrate, live, over the internet. You can call that an unintended consequence of the internet, USB, video conferencing, javascript, or what not.

[1] https://en.wikipedia.org/wiki/Arab_Spring